diff --git a/scripts/install b/scripts/install
index a01f656..d5cf7f5 100644
--- a/scripts/install
+++ b/scripts/install
@@ -8,6 +8,7 @@
 
 source _common.sh
 source /usr/share/yunohost/helpers
+
 #=================================================
 # RETRIEVE ARGUMENTS FROM THE MANIFEST
 #=================================================
@@ -19,7 +20,6 @@ timezone=$(cat /etc/timezone)
 #=================================================
 ynh_script_progression --message="Setting up source files..."
 
-# Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$install_dir"
 
 chmod -R o-rwx "$install_dir"
@@ -54,13 +54,10 @@ ynh_composer_exec --commands="movim:migrate"
 #=================================================
 ynh_script_progression --message="Adding system configurations related to $app..." --weight=1
 
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=low --footprint=low
+ynh_add_fpm_config
 
-# Create a dedicated NGINX config
 ynh_add_nginx_config
 
-# Create a dedicated systemd config
 ynh_add_systemd_config
 yunohost service add "$app" --description="Responsive web-based XMPP client" --log="/var/log/$app/$app.log"
 
@@ -69,7 +66,6 @@ yunohost service add "$app" --description="Responsive web-based XMPP client" --l
 #=================================================
 ynh_script_progression --message="Starting a systemd service..."
 
-# Start a systemd service
 ynh_systemd_action --service_name="$app" --action="start" --log_path="systemd" --line_match="Movim daemon launched"
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 24adb09..8781ccd 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -19,13 +19,10 @@ if ynh_exec_warn_less yunohost service status "$app" >/dev/null; then
     yunohost service remove "$app"
 fi
 
-# Remove the dedicated systemd config
 ynh_remove_systemd_config
 
-# Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
-# Remove the dedicated PHP-FPM config
 ynh_remove_fpm_config
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index b16dd05..e35873a 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -23,7 +23,6 @@ ynh_script_progression --message="Restoring the app main directory..."
 
 ynh_restore_file --origin_path="$install_dir"
 
-chmod 750 "$install_dir"
 chmod -R o-rwx "$install_dir"
 chown -R "$app:www-data" "$install_dir"
 
@@ -41,14 +40,14 @@ ynh_script_progression --message="Restoring system configurations related to $ap
 
 ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
-# Recreate a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$phpversion
+ynh_add_fpm_config
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
 systemctl enable "$app.service" --quiet
-yunohost service add "$app" --description=Responsive web-based XMPP client --log="/var/log/$app/$app.log"
+
+yunohost service add "$app" --description="Responsive web-based XMPP client" --log="/var/log/$app/$app.log"
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 725d5e7..57a00df 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,35 +24,11 @@ ynh_script_progression --message="Stopping a systemd service..."
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path="systemd"
 
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..."
-
-# If fpm_footprint doesn't exist, create it
-if [ -z "${fpm_footprint:-}" ]; then
-    fpm_footprint=low
-    ynh_app_setting_set --app="$app" --key=fpm_footprint --value="$fpm_footprint"
-fi
-
-# If fpm_free_footprint doesn't exist, create it
-if [ -z "${fpm_free_footprint:-}" ]; then
-    fpm_free_footprint=0
-    ynh_app_setting_set --app="$app" --key=fpm_free_footprint --value="$fpm_free_footprint"
-fi
-
-# If fpm_usage doesn't exist, create it
-if [ -z "${fpm_usage:-}" ]; then
-    fpm_usage=low
-    ynh_app_setting_set --app="$app" --key=fpm_usage --value="$fpm_usage"
-fi
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 ynh_script_progression --message="Upgrading source files..."
 
-# Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$install_dir" --full_replace=1
 
 chmod -R o-rwx "$install_dir"
@@ -86,13 +62,10 @@ ynh_exec_warn_less ynh_composer_exec --commands="movim:migrate --quiet"
 #=================================================
 ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1
 
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config --phpversion="$phpversion" --usage="$fpm_usage" --footprint="$fpm_footprint"
+ynh_add_fpm_config
 
-# Create a dedicated NGINX config
 ynh_add_nginx_config
 
-# Create a dedicated systemd config
 ynh_add_systemd_config
 yunohost service add "$app" --description="Responsive web-based XMPP client" --log="/var/log/$app/$app.log"